Castongia's, Inc. is the oldest John Deere Dealership in Indiana. Established in 1939, Castongia's is a 3rd generation family ... owned John Deere Dealership with 5 locations in Northwest Indiana. We specialize in John Deere Agricultural Equipment, Lawn & Grounds Care Equipment, Skid Steer Loaders as well as Parts, Service and Technology Enabled support for all of our products. read more